My adsense earnings are so different day by day its hard to keep it consistent for some reason.. I am not chaning what I am doing either its always up and down for me..
I think that's normal but still worrying.. I wasn't making a penny on one site I just put up then suddenly 30-50% CTR the last 2 days!
i have had ctr jumps but not 30-50% more thats a very big jump... I normally see increases of 15% ctr sometimes..